A bond's market price is $1,125. It has a $1000 par value, will mature in 12 years, and has a coupon interest rate of 9 percent annual interest, but makes its interest payments semiannually. What is the bond's yield to maturity? What happens to the bond's yield to maturity if the bond matures in 24 years? What if it matures in 6 years?

a. The bonds yield to maturity if it matures in 12 years is __%.